Wave Equation

Wave Speed, v
Speed of a wave, v, is:

not affected by the shape or amplitude of the wave
not affected by a change in frequency or wavelength
is truely dependent on the nature of the material it travels through.
all electromagnetic waves travel at the same speed of 3 x 10^8 m/s although they have different frequencies and wavelengths.

Wave Equation

Speed = Wavelength • Frequency
In symbols :

This equation is used for both transverse and longitudinal waves.